Weatherby Mark V Accumark .340 Wby Mag 26″ SS/Synthetic

About this product

The Weatherby Mark V Accumark .340 Wby Mag is a long-range bolt-action rifle engineered for extreme ballistic performance with a factory-integrated muzzle brake for recoil management. Weatherby built this platform specifically to handle the punishing .340 Weatherby Magnum cartridge, which delivers over 5,700 foot-pounds of muzzle energy with 250-grain factory loads. Its 26-inch spun stainless fluted barrel and graphite black Cerakote finish provide the durability needed for harsh-weather hunting applications where traditional blued steel would fail.

What is the Weatherby Mark V Accumark .340 Wby Mag used for?

The Mark V Accumark .340 is a purpose-built rifle for hunting large, dangerous game at extended distances where energy retention is critical. I recommend this rifle for elk, moose, or brown bear hunting across open terrain where shots may exceed 300 yards. Its 26-inch barrel provides maximum velocity for the .340 Weatherby cartridge, which maintains over 2,200 ft-lbs of energy at 500 yards with proper 250-grain bullet selection—enough to ethically take any North American game animal. The threaded 5/8"-24 muzzle accepts the factory Accubrake ST that reduces felt recoil by approximately 30%, making this magnum cartridge shootable for experienced shooters without developing a flinch.

How does the Weatherby Mark V Accumark compare to the Stevens 334 in .308?

The Weatherby Accumark provides significantly more long-range energy and specialized features than the Stevens 334 rifle, but requires more skill and investment to use effectively. Where the Stevens 334 in .308 Win offers basic hunting capability for approximately $450, the Weatherby Accumark at $1,999 delivers controlled-round feeding, a fully floated barrel channel, and precision bedding that supports consistent sub-MOA accuracy with quality ammunition. The .340 Weatherby Magnum generates nearly twice the muzzle energy of .308 Winchester (5,700 ft-lbs versus 2,800 ft-lbs), making it dramatically more effective on large-bodied game beyond 400 yards—but also producing 40% more recoil energy even with the brake installed.

What does it weigh and what are the dimensions?

The Mark V Accumark .340 Weatherby weighs 8.3 pounds empty with an overall length of 48.25 inches from muzzle to buttplate. Its 26-inch barrel represents the practical maximum length for maintaining velocity without becoming unwieldy in hunting scenarios—approximately 2.5 inches longer than the standard 23.5-inch barrel on most magnum hunting rifles. The hand-laid fiberglass synthetic stock has a 13.5-inch length of pull and 1.5 inches of drop at comb, creating a natural cheek weld for precision shooting positions. For comparison, a similar-caliber rifle like the Browning X-Bolt Long Range weighs approximately 7.8 pounds but lacks the factory-installed muzzle brake that makes the Weatherby shootable for extended sessions.

Who is this NOT for?

This rifle is not for new shooters, budget-conscious hunters, or those who primarily hunt in dense timber where shots remain under 150 yards. The .340 Weatherby Magnum cartridge costs $5-7 per round for quality hunting ammunition, which makes zeroing and practice sessions economically impractical for many shooters. Recoil remains substantial even with the Accubrake ST—it generates approximately 35 foot-pounds of recoil energy, which compares unfavorably to the 16 foot-pounds generated by a .308 Winchester in a similar-weight rifle. If your hunting involves climbing into treestands or packing through thick brush, you’ll find the 48.25-inch overall length creates constant snag points compared to compact bolt actions like the Stevens 334 in .308.

What's in the box?

Weatherby ships each Mark V Accumark with the rifle, factory-installed Accubrake ST muzzle device, and a single three-round magazine pre-installed in the hinged floorplate. The package includes basic documentation, a factory test target showing accuracy performance (typically 1.0-1.5 MOA with Weatherby factory ammunition), and a limited lifetime warranty registration card. Unlike some competitors, Weatherby does not include scope mounting hardware, sling swivels, or a basic cleaning kit—expect to add $75-150 in essential accessories before the rifle is field-ready. The Accubrake ST comes torqued to manufacturer specifications at 25 foot-pounds, which should be checked after the first 50 rounds.

Is the Weatherby Mark V Accumark worth it at $1,999?

At $1,999, the Weatherby Mark V Accumark represents fair value for specialized hunters who need maximum long-range energy and are willing to master a demanding cartridge. Comparable custom-built rifles chambered in .340 Weatherby typically start at $3,500 without the premium features like the fluted stainless barrel and Cerakote finish. The controlled-round feeding Mark V action provides reliable extraction under stress—a feature you won’t find on most production rifles under $2,000—while the fully floated barrel channel maintains consistent accuracy as barrel temperatures rise during extended shooting sessions. For general-purpose hunting where shots rarely exceed 300 yards, the Stevens 334 in .243 Win provides 90% of the capability at 25% of the cost, but for specialized applications requiring extreme energy delivery, the Accumark justifies its premium.